Aliansyah, Reza (2021) Analisis Jatuh Tegangan dan Penempatan Kapasitor Optimal Pada Penyulang Attaqwa 20 kV Gardu Induk Bekasi. Sarjana thesis, Universitas Brawijaya.
Abstract
Pertumbuhan beban pada sistem distribusi semakin meningkat terus - menerus dan hal ini diikuti dengan peningkatan permintaan suplai daya reaktif. Jika suatu jaringan tidak memiliki sumber daya reaktif di daerah sekitar beban maka semua kebutuhan beban reaktifnya dipikul oleh generator sehingga akan mengalir arus reaktif pada jaringan yang mengakibatkan drop tegangan. Optimal Capacitor Placement (OCP) merupakan salah satu metode yang menjadi sebuah solusi untuk menyelesaikan permasalahan jatuh tegangan dan susut daya pada sebuah sistem ketenagalistrikan. Permasalahan ini merujuk pada penyulang Attaqwa GI Bekasi yang memiliki panjang saluran hampir 111 kms dengan 78 trafo distribusi. Untuk menentukan ukuran dan letak optimal bank kapasitor pada sistem distribusi radial terlebih dahulu dilakukan analisa aliran daya dimana hasil aliran daya merupakan input pada proses OCP genetic algorithm (GA). Pada penelitian ini akan dilakukan optimasi penempatan dan ukuran kapasitor bank pada sistem distribusi dengan skenario pembebanan existing dan skenario pembebanan sebesar 80% kapasitas trafo distribusi. Hasil aliran daya skenario pembebanan existing menunjukkan kondisi sistem penyulang masih dalam keadaan baik dimana nilai jatuh tegangan masih dalam batas standar (-10% dan +5%), sedangkan untuk skenario pembebanan trafo sebesar 80% mengalami jatuh tegangan dibawah batas standar pada 35 bus sehingga dilakukan proses optimasi OCP metode GA dengan bantuan ETAP 12.6 yang menghasilkan kompensasi penempatan kapasitor sebanyak 11 kapasitor pada 9 bus dengan ukuran 400 kVAR tiap kapasitornya serta berhasil memperbaiki profil tegangan tiap bus sesuai batas standar dan memperbaiki rugi daya menjadi 507,1 kW dan 453,6 kVAR.
English Abstract
Load growth in distribution system increase steadily and is followed by increased demand for reactive power supply. If a network does not have a reactive power source in around load area then all the needs of reactive load borne by the generator so that reactive current will flow to the network resulting in decreased voltage drop. If the load consumes a large amount of reactive power, the system will work harder by increasing the current flowing to reach the nominal active power required by the load. Therefore reactive power has a relationship to changes in voltage. The voltage drop across a conductor is proportional to the reactive power flowing in the conductor. One solution to deal with the above problem is to install a capacitor bank in the distribution system. Optimal Capacitor Placement (OCP) is one of capacitor placement method that becomes a solution to solve the problem of voltage drop and power loss in an electrical system. This problem refers to feeder Attaqwa of GI Bekasi that has 111 kms length of distribution line with 78 distribution transformer. To set the rating and the optimal position of bank capacitor in the radial distribution system, an analysis of power flow should be done first where the output of power flow will be the input to the genetic algorithm OCP process. In this reseacrh, the optimation of rating and location of capacitor bank into distribution system will be done with the existing loading scenario and 80% loading capacity of distribution transformer. The result of power flow with the exisintg laoding scenario shows that the condition of feeder system still in the good condition where the voltage drop value still within the standard limits (-10% and +5%), while the result for the second loading scenario shows that there are voltage drop value under the limits on 35 buses in system so that the OCP process with the GA method carried out wilth help of ETAP 12.6 which resulted in compensation for the placement of 11 capacitors on 9 buses with a size of 400 kVAR for each capacitor and succeeded in improving the voltage profile of each bus according to standard limits and improving power losses to 507.1 kW and 453, 6 kVAR.
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | 052107 |
| Uncontrolled Keywords: | Jatuh Tegangan, Analisis Aliran Daya, Optimal Capacitor Placement (OCP), Genetic Algortihm (GA), ETAP 12.6, Voltage Drop, Power Flow Analysis. |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.38 Electronics, communications engineering > 621.381 Electronics |
| Divisions: | Fakultas Teknik > Teknik Elektro |
| Depositing User: | Unnamed user with email gaby |
| Date Deposited: | 22 Oct 2021 05:50 |
| Last Modified: | 30 Sep 2024 01:57 |
| URI: | http://repository.ub.ac.id/id/eprint/185002 |
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